EP0808606A1
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Surgical retractor
Assignee: United States Surgical Corp
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Filing: 1997-04-25
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Granted: —
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Expires: 2017-04-25
Abstract
Abstract Apparatus and method for surgery is disclosed which includes a retractor having a substantially planar base defining an opening for overlying an operative site on a patient, and at least one retractor blade slidably mounted to the base. The base is positioned on the patient such that the opening therein overlies the operative site. The operative site is percutaneously accessed, and obstructing tissue is retracted by engaging the tissue with the retractor blade. A surgical instrument is provided which is engageable with the base and operable at the operative site through the opening in the base. A surgical procedure is carried out through the opening in the base with the surgical instrument.
Inventors
- 👤 Charles R. Sherts
- 👤 David Nicholas
- 👤 David Farascioni
- 👤 Keith Ratcliff
- 👤 Peter W.J. Hinchliffe
- 👤 Cathy Aranyi
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-23 05:10
CPC Classifications
A; A61; A61B; A61B17/00; A61B17/02; A61B17/0293; A61M; A61M1/00; A61M1/71; A61M1/77; A61B17/12; A61B17/132; A61B17/1322; A61B17/1325; A61B17/00234; A61B2017/00238; A61B2017/00243; A61B2017/0237; A61B2017/0243; A61B17/28; A61B17/29; A61B2017/2901; A61B2017/2905; A61B90/00; A61B90/30; A61B2090/306; A61B2217/00; A61B2217/002; A61B2217/005; A61B2217/007; A61B90/50
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
101 words
A surgical retractor comprising: a) a monolithic base defining an opening therethrough and an outer peripheral portion having engagement structure thereon; b) a retractor mounting assembly including a mounting bracket and mounting bracket engagement structure slidable along the base and movable between a locked and unlocked position, in the locked position, the base engagement structure abutting the mounting bracket engagement structure to lock the retractor mounting assembly in a predetermined radial position, the retractor mounting assembly further defining a cavity; and c) a retractor blade slidably positioned in the cavity and configured to retract tissue through the opening in the base.
Claim 2
Dependent Claim
18 words
A surgical apparatus as recited in claim 1, wherein the retractor mounting assembly includes a resilient flange portion.
Claim 3
Dependent Claim
24 words
A surgical apparatus as recited in any of the preceding claims, wherein the retractor mounting assembly is normally biased in engagement with the base.
Claim 4
Dependent Claim
35 words
A surgical apparatus as recited in any of the preceding claims, wherein the retractor mounting assembly has a textured surface formed thereon for engaging a complementary textured surface formed on the periphery of the base.
Claim 5
Dependent Claim
38 words
A surgical apparatus as recited in any of the preceding claims, wherein the textured surface on the periphery of the base is a gearing and the textured surface on the retractor mounting assembly is a complementary gear tooth.
Claim 6
Dependent Claim
36 words
A surgical retractor as recited in any of the preceding claims, wherein the surgical supporting structure has a protrusion formed thereon configured to be received in one of a plurality of recesses defined in the base.
Claim 7
Dependent Claim
36 words
A surgical retractor as recited in any of the preceding claims, which further comprises: an actuator associated with the surgical instrument supporting structure configured to translate rotational movement thereof to linear movement of the retractor blade.
Claim 8
Dependent Claim
33 words
A surgical retractor as recited in any of the preceding claims, wherein the actuator has a pinion gear formed thereon configured to engage a rack formed on a portion of the retractor blade.
Claim 9
Dependent Claim
37 words
A surgical retractor as recited in any of the preceding claims, further comprising a fluid assembly integrally formed with the retractor blade and including a distal portion extending independent of the distal portion of the retractor blade.
Claim 10
Dependent Claim
25 words
A surgical retractor blade assembly as in claim 9, wherein the distal portion of the fluid assembly is independently positionable relative to the retractor blade.
Claim 11
Dependent Claim
21 words
A surgical retractor as in any of the preceding claims, wherein the retractor blade further includes suction, irrigation or blowing structure.
Claim 12
Dependent Claim
18 words
A surgical retractor as in any of the preceding claims, wherein the retractor blade further includes a light.
Claim 13
Dependent Claim
22 words
A surgical retractor as in any of the preceding claims, further comprising a second retractor mounting assembly and a second retractor blade.
Claim 14
Dependent Claim
85 words
A surgical retractor as in any of the preceding claims, further comprising at least one suture mount positioned on the base the suture mount including a coil spring configured to retain a suture end portion therein, and at least one cavity defined in the frame structure for receiving at least a portion of the coil spring, the at least one cavity defined in the frame structure being configured to retain the coil spring in an orientation substantially transverse to a radian of the frame structure.
Claim 15
Dependent Claim
31 words
A surgical retractor as in any of the preceding claims, wherein the retractor blade includes a ratchet system for controlling slidable movement of the blade relative to the retractor mounting assembly.
Claim 16
Dependent Claim
24 words
A surgical retractor as in any of the preceding claims, further comprising a transverse handle portion adjacent a proximal end of the retractor blade.
Claim 17
Dependent Claim
32 words
A surgical retractor as in any of the preceding claims, further comprising a strap adjacent a proximal end of the retractor blade to facilitate retraction thereof relative to the retractor mounting assembly.
References Cited (Backward Citations)
US1706500A
Cited
FR1005345A
Cited
US3129706A
Cited
US3965890A
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GB2102681A
Cited
US4627421A
Cited
US4796846A
Cited
US5375481A
Cited
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